Vulnerability Modeling of Key Assets of Cities with a Passive Defense Approach Using Fuzzy Logic (Case study: District 6 of Tehran)

The attractiveness of assets to the enemy is an estimate of the value of the target to the adversary. Experience has shown that, especially in military strikes, signs or targets better meet the goals of the adversary than others. Since not all assets are of equal value to the enemy, a basic assumption is that the value of an asset from the enemy's perspective is a factor that affects the likelihood of a security incident. The purpose of this study is to model the radius of vulnerability of land uses with a very high degree of vital importance as a case study in District 6 of Tehran. The type of research is applied and research method is descriptive-analytical and the method of data analysis is Mamdani fuzzy method. To radiate the vulnerability of critical assets, bombs with a warhead of 4,200 pounds of TNT were fired. Besides for very important assets, bombs with a warhead power of 2100 pounds of TNT have been selected according to the FEMA 325 guidelines, and the vulnerability radius in the GIS environment is further specified. The results show that in the event of a missile strike with a warhead of 4200 pounds of TNT from an area of 2120 hectares in an area of 833.27 hectares, equivalent to 39.3 percent and of the total number of land uses in the region, 11869 units, equivalent to 40.84 percent, were affected by the explosion. Also, if a missile with a warhead of 2100 pounds of TNT hits the total area of 906.87 hectares, equivalent to 42.75 percent, and of the total number of parts, 12864, equivalent to 44.26 percent, it will be affected by the explosion. Finally, suggestions for reducing vulnerability are provided.